Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

Analysis was completed on the 330 active participants in the study at 6 months.

The body-mass index is the weight in kilograms divided by the square of the height in meters.

[2]

Scores on the physical-function subscale of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) range from 0 to 100, with higher scores indicating more limitation of physical function.

[3]

Scores on the pain scale of the Knee Injury and Osteoarthritis Outcome Scale (KOOS) range from 0 to 100, with higher scores indicating more pain.